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WO2009008327A1 - Lubricating oil composition for buffer - Google Patents

Lubricating oil composition for buffer Download PDF

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Publication number
WO2009008327A1
WO2009008327A1 PCT/JP2008/062070 JP2008062070W WO2009008327A1 WO 2009008327 A1 WO2009008327 A1 WO 2009008327A1 JP 2008062070 W JP2008062070 W JP 2008062070W WO 2009008327 A1 WO2009008327 A1 WO 2009008327A1
Authority
WO
WIPO (PCT)
Prior art keywords
mass
buffer
oil
lubricating oil
oil composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/062070
Other languages
French (fr)
Japanese (ja)
Inventor
Shuichi Sakanoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Priority to CN2008800236549A priority Critical patent/CN101688146B/en
Priority to EP08777822.1A priority patent/EP2169037B1/en
Publication of WO2009008327A1 publication Critical patent/WO2009008327A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
    • C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
    • C10M2207/2895—Partial esters containing free hydroxy groups used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/084—Acrylate; Methacrylate
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/08—Amides [having hydrocarbon substituents containing less than thirty carbon atoms]
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/28—Amides; Imides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
    • C10M2219/046—Overbased sulfonic acid salts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/043—Ammonium or amine salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/049—Phosphite
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/051—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing halogen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/04—Molecular weight; Molecular weight distribution
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/40—Low content or no content compositions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/52—Base number [TBN]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

Disclosed is a lubricating oil composition for a buffer, which comprises: a base oil comprising a mineral oil and/or a synthetic oil; (A) 0.3 to 2 mass% of a zinc dialkyldithiophosphate having 7 to 12 carbon atoms in an alkyl group thereof; (B) 0.05 to 2 mass% of a fatty acid amide; and (C) 0.1 to 1 mass% of a monocyclic phenol antioxidant, wherein the content of an ester having a '-COO-' bond in the base oil is 0.6 mass% or less in terms of '-COO-' content. The lubricating oil composition can increase the frictional force at a sliding part between a piston rod and an oil seal, between a piston band and a cylinder or the like in a buffer while keeping good abrasion resistance and without deteriorating corrosion resistance and sludge resistance, and enables to achieve both of a high-level controllability/stability and a high-level ride quality.
PCT/JP2008/062070 2007-07-09 2008-07-03 Lubricating oil composition for buffer Ceased WO2009008327A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008800236549A CN101688146B (en) 2007-07-09 2008-07-03 Lubricating oil composition for shock absorbers
EP08777822.1A EP2169037B1 (en) 2007-07-09 2008-07-03 Lubricating oil composition for buffer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007180178A JP5150154B2 (en) 2007-07-09 2007-07-09 Lubricating oil composition for shock absorbers
JP2007-180178 2007-07-09

Publications (1)

Publication Number Publication Date
WO2009008327A1 true WO2009008327A1 (en) 2009-01-15

Family

ID=40228506

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062070 Ceased WO2009008327A1 (en) 2007-07-09 2008-07-03 Lubricating oil composition for buffer

Country Status (4)

Country Link
EP (1) EP2169037B1 (en)
JP (1) JP5150154B2 (en)
CN (1) CN101688146B (en)
WO (1) WO2009008327A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014031515A (en) * 2012-07-31 2014-02-20 Infineum Internatl Ltd Lubricating oil composition
WO2015025976A1 (en) * 2013-08-23 2015-02-26 出光興産株式会社 Lubricating oil composition for shock absorber
WO2015025977A1 (en) * 2013-08-23 2015-02-26 出光興産株式会社 Lubricating oil composition for shock absorber
CN105419330A (en) * 2015-12-11 2016-03-23 无锡亨宇减震器科技有限公司 Silicone oil shock absorber

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5295892B2 (en) * 2009-07-16 2013-09-18 コスモ石油ルブリカンツ株式会社 Hydraulic fluid composition for shock absorber
JP5883667B2 (en) * 2012-01-31 2016-03-15 出光興産株式会社 Shock absorber oil composition
JP5879168B2 (en) * 2012-03-23 2016-03-08 出光興産株式会社 Lubricating oil composition for shock absorbers
KR20160045706A (en) 2013-08-23 2016-04-27 이데미쓰 고산 가부시키가이샤 Lubricating oil composition for shock absorber and friction reduction method for shock absorber
EP3473695A1 (en) * 2016-06-21 2019-04-24 KYB Corporation Hydraulic fluid
JP6826498B2 (en) * 2017-06-08 2021-02-03 Ｅｎｅｏｓ株式会社 Lubricating oil composition for shock absorber
JP7089899B2 (en) * 2018-02-23 2022-06-23 出光興産株式会社 Lubricating oil composition, manufacturing method of lubricating oil composition and drive system equipment

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165996A (en) * 1979-06-14 1980-12-24 Nippon Oil Co Ltd Hydraulic fluid composition for damper
JPS62164796A (en) * 1986-01-16 1987-07-21 Idemitsu Kosan Co Ltd Dispersant for lubricating oil and lubricating oil composition containing the same
JPS63254196A (en) * 1987-04-11 1988-10-20 Idemitsu Kosan Co Ltd lubricating oil composition
JPH05186789A (en) * 1992-01-09 1993-07-27 Tonen Corp Lubricating oil composition
JPH05255682A (en) * 1992-03-11 1993-10-05 Tonen Corp Hydraulic fluid composition
JPH09111277A (en) 1995-10-19 1997-04-28 Idemitsu Kosan Co Ltd Hydraulic fluid composition
JPH09296194A (en) * 1996-05-01 1997-11-18 Nippon Oil Co Ltd Lubricating oil composition
JP2000219889A (en) * 1999-02-02 2000-08-08 Idemitsu Kosan Co Ltd Hydraulic fluid composition
JP2002194376A (en) 2000-12-26 2002-07-10 Nippon Mitsubishi Oil Corp Hydraulic fluid composition for shock absorber
JP2002294268A (en) * 2001-03-29 2002-10-09 Showa Shell Sekiyu Kk Lubricating oil composition
JP2003055681A (en) * 2001-08-17 2003-02-26 Idemitsu Kosan Co Ltd Lubricating oil composition
JP2003147379A (en) 2001-11-13 2003-05-21 Idemitsu Kosan Co Ltd Lubricating oil composition for automobile shock absorber
JP2004035624A (en) * 2002-06-28 2004-02-05 Nippon Oil Corp Hydraulic fluid composition for shock absorber
WO2006005711A1 (en) * 2004-07-08 2006-01-19 Shell Internationale Research Maatschappij B.V. Lubricating oil composition
JP2007063431A (en) 2005-08-31 2007-03-15 Idemitsu Kosan Co Ltd Lubricating composition

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JPH06502887A (en) * 1991-09-16 1994-03-31 ザ ルブリゾル コーポレイション oil composition
JP3454593B2 (en) * 1994-12-27 2003-10-06 旭電化工業株式会社 Lubricating oil composition
AU710294B2 (en) * 1995-09-12 1999-09-16 Lubrizol Corporation, The Lubrication fluids for reduced air entrainment and improved gear protection
JP4076634B2 (en) * 1998-09-09 2008-04-16 新日本石油株式会社 4-cycle engine oil composition for motorcycles
JP2001262176A (en) * 2000-03-21 2001-09-26 Nippon Mitsubishi Oil Corp Lubricating oil composition for transmission
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Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55165996A (en) * 1979-06-14 1980-12-24 Nippon Oil Co Ltd Hydraulic fluid composition for damper
JPS62164796A (en) * 1986-01-16 1987-07-21 Idemitsu Kosan Co Ltd Dispersant for lubricating oil and lubricating oil composition containing the same
JPS63254196A (en) * 1987-04-11 1988-10-20 Idemitsu Kosan Co Ltd lubricating oil composition
JPH05186789A (en) * 1992-01-09 1993-07-27 Tonen Corp Lubricating oil composition
JPH05255682A (en) * 1992-03-11 1993-10-05 Tonen Corp Hydraulic fluid composition
JPH09111277A (en) 1995-10-19 1997-04-28 Idemitsu Kosan Co Ltd Hydraulic fluid composition
JPH09296194A (en) * 1996-05-01 1997-11-18 Nippon Oil Co Ltd Lubricating oil composition
JP2000219889A (en) * 1999-02-02 2000-08-08 Idemitsu Kosan Co Ltd Hydraulic fluid composition
JP2002194376A (en) 2000-12-26 2002-07-10 Nippon Mitsubishi Oil Corp Hydraulic fluid composition for shock absorber
JP2002294268A (en) * 2001-03-29 2002-10-09 Showa Shell Sekiyu Kk Lubricating oil composition
JP2003055681A (en) * 2001-08-17 2003-02-26 Idemitsu Kosan Co Ltd Lubricating oil composition
JP2003147379A (en) 2001-11-13 2003-05-21 Idemitsu Kosan Co Ltd Lubricating oil composition for automobile shock absorber
JP2004035624A (en) * 2002-06-28 2004-02-05 Nippon Oil Corp Hydraulic fluid composition for shock absorber
WO2006005711A1 (en) * 2004-07-08 2006-01-19 Shell Internationale Research Maatschappij B.V. Lubricating oil composition
JP2007063431A (en) 2005-08-31 2007-03-15 Idemitsu Kosan Co Ltd Lubricating composition

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2169037A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014031515A (en) * 2012-07-31 2014-02-20 Infineum Internatl Ltd Lubricating oil composition
WO2015025976A1 (en) * 2013-08-23 2015-02-26 出光興産株式会社 Lubricating oil composition for shock absorber
WO2015025977A1 (en) * 2013-08-23 2015-02-26 出光興産株式会社 Lubricating oil composition for shock absorber
JPWO2015025976A1 (en) * 2013-08-23 2017-03-02 出光興産株式会社 Lubricating oil composition for shock absorbers
US9745536B2 (en) 2013-08-23 2017-08-29 Idemitsu Kosan Co., Ltd. Lubricating oil composition for shock absorber
CN105419330A (en) * 2015-12-11 2016-03-23 无锡亨宇减震器科技有限公司 Silicone oil shock absorber

Also Published As

Publication number Publication date
JP5150154B2 (en) 2013-02-20
CN101688146B (en) 2013-03-27
EP2169037A1 (en) 2010-03-31
EP2169037A4 (en) 2014-08-20
CN101688146A (en) 2010-03-31
EP2169037B1 (en) 2019-03-20
JP2009013380A (en) 2009-01-22

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